ArtStor provides access to thousands of digital images derived from a variety of museum, library and archival collections. Log in with your college email user name and password to search by keyword, artist, and geographic region. Note too that limiting results by date range is a good way to focus results.
The British Library has extensive holdings of prints, drawings, and illustrated books. Search by keyword, e.g. ranter, to find an illustrated news story.
Also note these images relating to medieval and early modern gardens from the exhibit, The Writer in the Garden.
This website presents a database of prints and book illustrations that is searchable by subject, artist, date, and technique. You can search more than one category at a time by choosing the first one, then clicking on "Hold", and selecting additional terms. Book illustrations include this elaborate allegory about King Charles I and religion.
This describes and indexes themes in art, some of which are represented in the images in your ArtStor folders (e.g., Abundance, Expulsion, and Shephers/Shepherdesses). Note the index for artists on pages 1011-1050.
Includes a major encyclopedia of art as well as other reference works. The entries are enhanced by numerous illustrations and links to artworks. Good for quick information about artists and their works.